The manual describes the methods of image processing and recognition associated with the identification of a person by his biometric characteristics obtained in the form of images. The main attention is paid to methods of correction of brightness and spatial distortions of raster monochrome images, as well as methods of reducing the dimension of feature space in recognition. The main approaches to the identification of a person by fingerprints, iris and portrait. The program is designed for students, students in the specialty "Informatics and Computer Engineering", and can be used in the study of disciplines ''Digital image processing and recognition'', 'Artificial Intelligence Systems', 'Methods and means of information protection', Hardware and software of financial systems . Can be useful to graduate students and engineers involved in digital image processing and recognition, design of access control and differentiation devices and preventive security systems